The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 19, 2022

Filed:

Jul. 19, 2018
Applicant:

Uisee Technologies (Beijing) Co., Ltd, Beijing, CN;

Inventors:

Wei Feng, Beijing, CN;

Wei Lin, Beijing, CN;

Dan Zhang, Beijing, CN;

Xin Zhou, Beijing, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01S 13/933 (2020.01); G01S 13/89 (2006.01); G01C 21/00 (2006.01); G06K 9/62 (2022.01);
U.S. Cl.
CPC ...
G01C 21/3874 (2020.08); G01C 21/3811 (2020.08); G01C 21/3867 (2020.08); G06K 9/6218 (2013.01);
Abstract

The present disclosure provides methods, apparatuses, and storage media for storing and loading visual localization maps. The methods for storing the visual localization maps may include acquiring a visual localization map; extracting key frame abstract information of each key frame from the visual localization map; grouping the key frame abstract information of all key frames of the visual localization map; for each group, generating and storing a sub-map-file of the group using the key frame abstract information of the group; generating key frame space index information based on the key frame abstract information of all groups; and generating and storing a master map file according to the key frame space index information for indexing the sub-map-file.


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